\version "2.6.0"

\header {

    texidoc = "At the beginning of a system, the @code{|:} repeat
barline is drawn between the staves, but the @code{:|} is not."

      }

\score {
 \new PianoStaff <<
    \context Staff = "up" {
	\bar "|:" r1
	\bar ":|" \break r1
    }
    \context Staff = "down" { r r }
  >>
  \layout{ raggedright = ##t }
}
